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From:   Arnd Bergmann <arnd@arndb.de>
Date:   Thu, 7 Jul 2022 15:07:09 +0200
Message-ID: <CAK8P3a01x_ETchX2Vwm9oNaFJDhVZEu+G-2vRwegqKkMe54m6g@mail.gmail.com>
Subject: Re: [PATCH] asm-generic: correct reference to GENERIC_LIB_DEVMEM_IS_ALLOWED
To:     Conor Dooley <Conor.Dooley@microchip.com>
Cc:     Arnd Bergmann <arnd@arndb.de>,
        Lukas Bulwahn <lukas.bulwahn@gmail.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Palmer Dabbelt <palmerdabbelt@google.com>,
        "Luis R. Rodriguez" <mcgrof@kernel.org>,
        linux-arch <linux-arch@vger.kernel.org>,
        kernel-janitors <kernel-janitors@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Precedence: bulk

On Thu, Jul 7, 2022 at 2:20 PM <Conor.Dooley@microchip.com> wrote:
> On 07/07/2022 13:13, Arnd Bergmann wrote:
> > On Thu, Jul 7, 2022 at 1:40 PM Lukas Bulwahn <lukas.bulwahn@gmail.com> wrote:
> >>
> >> On Wed, Oct 6, 2021 at 6:52 PM Palmer Dabbelt <palmerdabbelt@google.com> wrote:
> >>>
> >>> On Wed, 06 Oct 2021 08:17:38 PDT (-0700), Arnd Bergmann wrote:
> >>>> On Wed, Oct 6, 2021 at 5:00 PM Lukas Bulwahn <lukas.bulwahn@gmail.com> wrote:
> >>>>>
> >>>>> Commit 527701eda5f1 ("lib: Add a generic version of devmem_is_allowed()")
> >>>>> introduces the config symbol GENERIC_LIB_DEVMEM_IS_ALLOWED, but then
> >>>>> falsely refers to CONFIG_GENERIC_DEVMEM_IS_ALLOWED (note the missing LIB
> >>>>> in the reference) in ./include/asm-generic/io.h.
> >>>>>
> >>>>> Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs:
> >>>>>
> >>>>> GENERIC_DEVMEM_IS_ALLOWED
> >>>>> Referencing files: include/asm-generic/io.h
> >>>>>
> >>>>> Correct the name of the config to the intended one.
> >>>>>
> >>>>> Fixes: 527701eda5f1 ("lib: Add a generic version of devmem_is_allowed()")
> >>>>> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
> >>>>
> >>>> Acked-by: Arnd Bergmann <arnd@arndb.de>
> >>>
> >>> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
> >>> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
> >>>
> >>> Thanks.  I'm going to assume this is going in through some other tree,
> >>> but IIUC I sent the buggy patch up so LMK if you're expecting it to go
> >>> through mine.
> >>
> >> Palmer, Arnd,
> >>
> >> the patch in this mail thread got lost and was not picked up yet.
> >>
> >> MAINTAINERS suggests that Arnd takes patches to include/asm-generic/,
> >> since commit 1527aab617af ("asm-generic: list Arnd as asm-generic
> >> maintainer") in 2009, but maybe the responsibility for those files has
> >> actually moved on to somebody (or nobody) else and we just did not
> >> record that yet in MAINTAINERS.
> >>
> >> Arnd, will you pick this patch and provide it further to Linus Torvalds?
> >>
> >> Otherwise, Palmer already suggested picking it up himself.
> >>
> >
> > I've applied it to the asm-generic tree and can send it as a bugfix
> > pull request. I don't have any other fixer for that branch at the moment,
> > so if Palmer has other fixes for the riscv tree already, it would
> > save me making a pull request if he picks it up there.

lkft just found a build failure:

https://gitlab.com/Linaro/lkft/users/arnd.bergmann/asm-generic/-/jobs/2691154818

I have not investigated what went wrong, but it does look like an actual
regression, so I'll wait for Lukas to follow up with a new version of the patch.

       Arnd